Organization of the maintenance of international public switched telephone circuits used for data transmission
This Recommendation is also included but not published in V series under alias number V.51

[Withdrawn] Functions, maintenance responsibilities and maintenance facilities of a coast earth station for telephony services
ITU-T M.1100, M.1110 and M.1120 were merged into new Recoomendation ITU-T M.1140 on 1992-10-05

Performance limits for bringing-into-service and maintenance of international SDH paths and multiplex sections
In spite of the fact that ITU-T M.2101.1 and M.2101 are similar, they are both in force. M.2101.1 will eventually be deleted after PDH items have been transferred from M.2101.1 to M.2101.

TMN management services for dedicated and reconfigurable circuits network : Information model for connection management of preprovisioned service link connections to form a reconfigurable leased service

[Withdrawn] Measuring errors and differences due to impedance inaccuracies of instruments and apparatus. Use of decoupled measuring points
This Supplement was withdrawn because its content was out of date

[Withdrawn] Stability of overall loss and psophometric noise: results of routine maintenance measurements made on the international network during the first half of 1978
This Supplement was withdrawn because its content was out of date

[Withdrawn] Instructions for making future measurements of the transmission quality of complete connections for recording the results of the measurements
This Supplement was withdrawn because its content was out of date

[Withdrawn] Instructions for making future measurements of the transmission quality of international circuits and international centres and for recording the results of the measurements
This Supplement was withdrawn because its content was out of date

[Withdrawn] Weighting of measurements relating to the stability of circuits in the international network according to the size of circuit groups
This Supplement was withdrawn because its content was out of date